Looking at the Hermes memory options? The honest comparison is just below — six choices from session-only to vector databases, judged on the two columns that matter: can you read it, and does it survive a model swap.
Short answer
- Six options, two deciding columns: readable by you, and survives model swaps.
- The pick for almost everyone: a linked markdown vault — free, auditable, shared.
- Vectors are a scale tool, not a starting point — keep markdown as source of truth.
- Whatever you pick, it must export — memory that can’t travel is a rooted plant.
All the Hermes memory options, compared
| Option | Cost | You can read it | Survives model swap | Verdict |
|---|---|---|---|---|
| Session context only | Free | N/A | No | Not memory — it dies with the window |
| SOUL.md alone | Free | Yes | Yes | Personality, not knowledge — too small for a business |
| Default file store | Free | Yes | Yes | Fine to start |
| Flat notes folder | Free | Yes | Yes | Works; degrades without links |
| Obsidian vault | Free | Yes | Yes | The pick — linked, auditable, shared |
| Vector database | Varies | No | Yes | Scale tool; add only if you outgrow markdown |
The columns that matter are the middle two. An option you can’t read is an option you can’t correct, and an option that dies with the model resets your work every launch cycle.
Choosing between the Hermes memory options
- Just exploring? Default store. Zero setup, and it proves the read/write loop.
- Running a business on it? The vault. Linked notes, agent-maintained, one brain across every agent you run.
- Multiple distinct jobs? Vault + per-profile isolation — or per-bot memory in Bot Mode.
- Genuine scale problems? Only then consider vectors — and keep the markdown as source of truth it indexes.
Full reasoning behind the recommendation sits in best memory for Hermes Agent.
🔥 Want this set up without the guesswork? Picking an option is five minutes; the payoff is every session for the next year starting warm. Inside the AI Profit Boardroom you get the Agent OS as a ready-to-install file, a 30-day roadmap, daily tutorials the same day new tools ship, and four live coaching calls a week where you share your screen and get unstuck. → Get access here
The option people forget: portability
Whichever option you pick, ask one more question: does it travel?
Export packages persona, skills and memory into a single file with credentials stripped — which means a markdown-based option moves machines, survives rebuilds, and can even be handed to a teammate who plugs in their own keys. A memory option that can’t be exported is a plant rooted in one pot.
Details in backup and restore, and ongoing care in memory management.
FAQ
What are the Hermes memory options?
Session-only context, SOUL.md alone, the default file store, a flat notes folder, an Obsidian vault, or a vector database — with the vault the standout for anything serious.
Which option should a beginner pick?
Start on the default store to prove the loop, then move to a vault the week it starts mattering. Both are free.
Why not a vector database from day one?
Because you can’t read it. Start with markdown you can audit and correct; add retrieval only at genuine scale, with markdown still the source of truth.
Do the options differ per profile?
Yes — profiles isolate memory, so different jobs can even use different options. Keep client work in something readable and exportable.
Which options survive switching models?
Everything stored on disk — files, folders, vault. Only session context dies. That’s the argument for never relying on it.
Can my memory option be backed up?
Markdown options export in one file with credentials stripped. If your chosen option can’t do that, that’s a reason to change option.
The bottom line on Hermes memory options
The Hermes memory options run from nothing (session context) to heavy (vectors), and the winner for almost everyone is the boring middle: a linked markdown vault you can read, correct, share across agents and export in one file. Pick readable and portable, and you’ll never rebuild your agent’s brain from scratch.
About Julian Goldie
I run Goldie Agency, a 7-figure SEO agency, and teach this daily on a 400K+ subscriber YouTube channel. 240+ client projects on Upwork at a 100% job-success score, 10+ years through every major Google update. My systems are in the AI Profit Boardroom; my link building book is free here.
Related reading
Last updated August 2026. This is the living guide to Hermes memory options — it gets updated as the tools change.
